The term vortex is used to indicate that the air flows in a counterclockwise direction. Both polar vortexes are present ...

There is a sudden warming about to happen high up in the atmosphere. This warming usually affects the Polar Vortex.

The polar vortex is a large area of low pressure, cold air around the Earth's poles that blows westward during the winter and eastward during the summer. A polar vortex collapse occurs when air in ...

The polar bears pass through Churchill, Manitoba, hoping to catch a ride out of the tiny town on Hudson Bay's sea ice. After a summer of fasting on land, the bears need to get back to their frozen ...

Despite the poor weather conditions it is not, however, the second coming of a polar vortex, a phrase the National Weather Service's Chicago office tweeted earlier this week to describe the ...

A polar vortex is a ‘large area of low pressure and cold air surrounding both of the Earth’s poles’ that ‘ALWAYS exists near ...

and growing new feathers for their return trip to the Arctic—and polar summer. Throughout, careful illustrations set the terns alongside a larger community of wildlife: the tiny fish on which ...